body{
    width: 100%;
    height: 100%;
    background: url(https://cas.1000phone.net/cas/images/login/bg.png) no-repeat top;
    background-size: 100% 100%;
    position: absolute;
    top: 0;
    left: 0;
}
#basic{
    width: 450px;
    background-color: white;
    border-radius: 10px;
    position: absolute;
    top: calc(50% - 200px);
    left: calc(50% - 200px);
    padding-top: 20px;
}

#root .ant-input-affix-wrapper{
    width: 300px;
}
#root .ant-col-8{
    max-width: 120px;
    /* width: 100px; */
}